package com.zdc.learn.netty.webSocket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

import java.time.LocalDateTime;

/**
 * TextWebSocketFrame 类型，表示一个文本帧(frame)
 */
public class NettySocketServerHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {
    @Override
    protected void channelRead0(ChannelHandlerContext ch, TextWebSocketFrame text) throws Exception {
        System.out.println("服务器收到的消息:"+text.text());
        //回复消息
        ch.channel().writeAndFlush(new TextWebSocketFrame("服务器时间" + LocalDateTime.now() + " " + text.text()));
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerAdded被调用:"+ctx.channel().id().asLongText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerRemoved被调用:"+ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("exceptionCaught异常数据:"+cause.getMessage());
    }
}
